Formula: (Ce/Nd/Y/REE)(CO₃)F

Species:

Lustre: Vitreous

Member of: Bastnäsite Group Name used for F-dominant members of the Bastnäsite Group for which the dominant REE element is not known; Bastnäsite-(Ce) is the most common member.A greasy, wax-yellow to reddish-brown weakly radioactive mineral, most commonly found in metamorphic rocks and pegmatites.
The group members may be part of the Bastnäsite-Vaterite Homologous Series.